Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Yellowing of Chemical Pulp by Glucuronoxylan

  • Kim, Young-Seok (Department of paper Science and Engineering, Kangwon National University) ;
  • Yoon, Byung-Ho (Department of paper Science and Engineering, Kangwon National University)
  • Published : 2006.09.30
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Abstract

Xylan in hemicellulose has been reported as one of the reasons of the yellowing of chemical pulp and paper. But little relevant information is available in literature. In this study, we examined into the influence that glucuronoxylan or glucomannan and metallic ion($Cu^{2+},\;Fe^{2+},\;Fe^{3+},\;Mn^{2+}$) residued in pulp get each or when mixed at yellowing. Filter paper was treated with each metallic ion, glucuronoxylan and the mixture of glucuronoxylan and metal ions, and brightness and CIE $L^*a^*b^*$ was measured after accelerated aging. As the results of measurements, the filter paper processed by 10% glucuronoxylan was dropped $2{\sim}3%$ on the brightness after accelerated aging for 24 hours. Also, the filter paper treated with glucuronoxylan and $Fe^{2+}$ was dropped 7% on the brightness.

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